Agenta vs Weights & Biases
A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.
 Agenta Evaluation |  Weights & Biases Evaluation | |
|---|---|---|
| Tagline | Open-source LLMOps platform for prompt engineering, evaluation, and observability in one workspace. | The ML experiment tracker, now with LLM eval features. |
| Category | Evaluation | Evaluation |
| Pricing | Freemium· Hobby: $0 forever · Pro: $29 /month · Business: $299 /month · Enterprise: Custom · Open source: Free forever | Freemium· Free: $0/mo · Pro: Starts at $60/month · Enterprise: Custom plans · Personal: $0/mo · Advanced Enterprise: Custom plan |
| Model | Multi-model | Platform (any LLM) |
| Editorial score | 6.9 / 10 | 8.4 / 10 |
| Use cases | prompt-engineeringllm-evaluationobservabilityprompt-versioningllm-tracing | ML experimentsLLM evalWeave |
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| Website | agenta.ai | wandb.ai |
Pick Agenta if
- ✅ Open-source with self-host option, no vendor lock-in
- ✅ Covers prompt engineering, evals, and observability in one tool
- ✅ Full API/UI parity lets PMs and engineers share the same workflow
- ✅ Plays nicely with LangChain, LlamaIndex, and raw OpenAI calls
Pick Weights & Biases if
- ✅ Industry-standard for ML tracking
- ✅ Weave adds LLM-native eval
- ✅ Mature, reliable
- ✅ Strong enterprise features